Highest temperature in Seoul on July 18?

Platform comparison

Market context

Seoul experiences its most intense heat during mid-July, when the East Asian summer monsoon and the North Pacific high-pressure system converge over the Korean peninsula. The highest temperature recorded at Incheon International Airport Station on any 18 July in the available historical record was 33.2°C in 2018, though daily maxima in this period typically range between 28°C and 32°C. The airport station, located on reclaimed land west of Seoul proper, tends to register slightly cooler readings than central Seoul due to maritime influence, making extreme heat less frequent there than across the city's urban core.

The 0% crowd probability reflects uncertainty around whether the market's temperature brackets include a realistic upper bound for this specific date and location. Traders should examine Wunderground's historical data for Incheon RKSI to establish the frequency of readings above 32°C during mid-July across multiple years. Weather forecasts become reliable only 7–10 days before 18 July 2026; current seasonal models suggest typical monsoon conditions will persist, though any shift towards a continental high-pressure system could drive temperatures notably higher. The Korea Meteorological Administration publishes daily forecasts and heat advisories that will provide actionable signals as the settlement date approaches.

Methodology

Sports-specific comparison page for Highest temperature in Seoul on July 18?. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.

Resolution & payout

Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.

FAQ

Are prediction markets better than sports betting?

Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.

When do sports markets resolve?

Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.

What are live sports odds on Polymarket?

Some top-tier matches stay open during play — you can trade the half-time probability in the 70th minute. Polymarket mid-prices update second-by-second; any frontend mirroring the order book shows the same movement.

How fast do sports winnings settle?

Once the official league outcome is logged in the UMA Oracle (typically 1-2 hours after the final whistle), Polymarket's smart contract triggers USDC payout. To your wallet within minutes.

Can I import form data and lineups?

This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.